Lightwell is no longer Targetable, but has a lot of positives with it now:

Has a 20yrd Range
DOES NOT affecting casting and can be clicked mid cast
is NO LONGER targetable, meaning you wont lose your current target if you click it to get healed.
IS a Priest top end HpM spell and should be used whenever possible and kept up at all times during raid bosses and heroic bosses to assist.

Just click on the Lightwell. It doesn't clear your current target to do so, and it is clickable from up to 20 yards away now (I thought it was 30, but people are saying 20). DPS should be aware of their surroundings and be fully aware of where the Lightwell has been placed - and especially in a guild run you should know where your holy priest is placing his or her little well of holy love.

Since it has a 40 yard placement range, there is no reason your healer wouldn't be placing it halfway between the casters and melee.

It does however interupt my Hellfire cast when I'm running around killing adds and clicking the Lightwell :'(. Might be a bug though and Blizzard doesn't know it yet. But It's kinda annoying since the Hellfire costs alot of mana, and when your low on hp you can't really Life Tap.

It does however interupt my Hellfire cast when I'm running around killing adds and clicking the Lightwell :'(. Might be a bug though and Blizzard doesn't know it yet. But It's kinda annoying since the Hellfire costs alot of mana, and when your low on hp you can't really Life Tap.

This is coming from a Warlock obviously ^^.

It does cancel Channeled spells, which is a known issue I believe. Means we can't use it while channeling Hymn of Hope and Divine Hymn

The Lightwell itself is targettable (you can use a /target on it) but there's no macro command to "interact with target". You can assign a button to the "interact with target" option in keybinds so you would need 2 buttons to use it without clicking it, one to target and one to interact with it.

You don't have any need to target the Lightwell - just click on it. It won't remove your target, you don't need to face it, and it's a 40yrd range. If you can't find the second the click the lightwell then you're doing something wrong!

You cannot target a friendly lightwell. Ever. That's the solution for the lightwell targetting issues we had in WoTLK.
Even if you could, there is no way for a macro to interact with a target anyway - /use won't work.

You cannot target a friendly lightwell. Ever. That's the solution for the lightwell targetting issues we had in WoTLK.
Even if you could, there is no way for a macro to interact with a target anyway - /use won't work.

So I'm afraid you will just have to click it manually in 3D space.

You can target a friendly Lightwell using a /target macro, and then use it with the interact with target keybind. So it's possible to use Lightwell using 2 keys but losing your current target (not a major problem as a healer). The /target macro can be included to Lightwell button, casting Lightwell when the cooldown is up and targeting the well if it's already placed, saving a keybind.

I know, to to find 2 free keybinds as a holypriest is hard, but if you try it you won't use Lightwell button again.

Plenty of misinformation here...you absolutely CAN TARGET lightwells with a macro. To "macro" the use of the lightwell, you need 2 or 3 kaybinds though (depending on what you want to do). Here are the steps:

1) Create macro /tar lightwell (put the macro on a bar somewhere and set a keybind for it)
2) Go into the keybind menu and set a keybind for the "interact with target" funtion
3) Crate a macro /targetlasttarget (and put on a bar and set a keybind for it, or is it in the keybind menu already? meh, either way).

So then you have to hit either 2 or 3 keys in quick succession and it will start the HoT and you will be back on your target.